Thank you for taking the time and effort to produce this in english

A hint from an old hobbyist...BUILD YOUR OWN POWER SUPPLYS

You somehow found the most inconvenient power supply ever.
I bought a similar looking power supply from AliExpress, but it had an output on/off button at the front.
It also didn't force you to short the output to set a current limit. There was a dedicated knob for current limiting.

I built myself a very cheap 'lab PSU' using an old 19V laptop power brick, a DC-DC converter off amazon and a voltage/amp meter that I mounted together on a bit of wood. I need a small screw driver to turn the controls. It's been... sufficient... for occasional usage when I need a specific voltage.

The hobbyist reality is an Aliexpress lab, multimeter true rms, power supply, oscilloscope, function generator, IC programmer and so on. When I was a studant, my power supply was linear, but controled by a LM317, this cheap one was a dream.

I have one like this, the power button is on the front and the voltage decrease fast. Otherwise i am not bothered by having to make a short to set the current limit, usually i know before plugging the circuit how much current i want. Those cheap power supply are good enough for a repairing hobby.

1:27 The Korad KD3005D can be had for around $75, and is probably the cheapest halfway decent linear bench PSU out there. I do recommend spending the extra $20 for the KA3005D, though, because it has a proper output on/off button and presets.

In India, 98% of items sold on AMAZON are very very costly. One can buy the same item from local market or other online stores as low as half the prize on Amazon. Always check the price on more than one store as well as local market before buying.

This cheap power supply is perfect for the hobbiest. About none of the downsides  , except the noise , matter in the home shop. Reaching over the back to turn the unit off, is an inconvenience,  but not a show stopper.

Thanks for your video.

thank you NileOrange

5:38 actually there is. I spent maybe 10$ more and I can set current without shorting (it goes back to actual value in a second or two). And it drops voltage very fast when commanded. Also adding output button can be made as diy improvement.

Great video.  I wish I would have seen it before I bought my cheap power supply.  At least mine has an on/off button on the front, lol.  I probably would have gotten mine anyway because your assessment is spot on.  As a hobbyist, I don't really need a better more expensive supply.  Also, the dubbed audio didn't bother me one bit.  Thanks!

One item that is never mentioned in review videos is the lack of safety standards. Like virtually all generic Chinese bench-top PSUs, its safety hasn't been verified by UL, ETL, or anyone creditable.

Thanks for the video.

The ability to pick it up w/ 1 hand so easily shows everything a tech needs to know about that PSU.

it's the best of over 10 reviews of cheap DC power supply so far. I purchased it last week and everything works like you have described. One should have one for an electronic hobby and amateur DIY solar installer.

your videos are very useful, Thak you very much

Thanks, I've been looking for this

After some research a while back, I bought a 0-30V, 10A power supply hat has almost none of the inconveniences shown. It has front panel power & output controls, no need to short circuit the output to set limiting current, has 3 configurable memory presets, OCP, USB fast charge output and shows little electrical noise, even when delivering appreciable current. It does take its time to revert to a lower voltage from a higher setting, though. But this manifests itself mainly when the voltage difference is high (say going from 30V to 5V), which is not typical in my use anyway. It's a Wanptek APS3010H.

Oh, and I still have the linear,  variable 15V 1.5A power supply that I built in 1978 as my first electronics project. Still works, too.

I was so happy to buy one of those cheap power supplies. But now I want to cry! 😢

The RD DPS/RK/RD series DC-DC converters are well regarded